ccan/ntdb: demote to junkcode.

[ccan] / junkcode / rusty@rustcorp.com.au-ntdb / test / run-25-hashoverload.c

diff --git a/junkcode/rusty@rustcorp.com.au-ntdb/test/run-25-hashoverload.c b/junkcode/rusty@rustcorp.com.au-ntdb/test/run-25-hashoverload.c
new file mode 100644 (file)
index 0000000..5a2c9cd
--- /dev/null
+++ b/junkcode/rusty@rustcorp.com.au-ntdb/test/run-25-hashoverload.c
@@ -0,0 +1,94 @@
+#include "ntdb-source.h"
+#include "tap-interface.h"
+#include "logging.h"
+#include "helprun-external-agent.h"
+
+#define OVERLOAD 100
+
+static uint32_t badhash(const void *key, size_t len, uint32_t seed, void *priv)
+{
+       return 0;
+}
+
+static int trav(struct ntdb_context *ntdb, NTDB_DATA key, NTDB_DATA dbuf, void *p)
+{
+       if (p)
+               return ntdb_delete(ntdb, key);
+       return 0;
+}
+
+int main(int argc, char *argv[])
+{
+       unsigned int i, j;
+       struct ntdb_context *ntdb;
+       NTDB_DATA key = { (unsigned char *)&j, sizeof(j) };
+       NTDB_DATA dbuf = { (unsigned char *)&j, sizeof(j) };
+       union ntdb_attribute hattr = { .hash = { .base = { NTDB_ATTRIBUTE_HASH },
+                                               .fn = badhash } };
+       int flags[] = { NTDB_INTERNAL, NTDB_DEFAULT, NTDB_NOMMAP,
+                       NTDB_INTERNAL|NTDB_CONVERT, NTDB_CONVERT,
+                       NTDB_NOMMAP|NTDB_CONVERT,
+       };
+
+       hattr.base.next = &tap_log_attr;
+
+       plan_tests(sizeof(flags) / sizeof(flags[0]) * (7 * OVERLOAD + 11) + 1);
+       for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+               NTDB_DATA d = { NULL, 0 }; /* Bogus GCC warning */
+
+               ntdb = ntdb_open("run-25-hashoverload.ntdb",
+                                flags[i]|MAYBE_NOSYNC,
+                                O_RDWR|O_CREAT|O_TRUNC, 0600, &hattr);
+               ok1(ntdb);
+               if (!ntdb)
+                       continue;
+
+               /* Overload a bucket. */
+               for (j = 0; j < OVERLOAD; j++) {
+                       ok1(ntdb_store(ntdb, key, dbuf, NTDB_INSERT) == 0);
+               }
+               ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+
+               /* Check we can find them all. */
+               for (j = 0; j < OVERLOAD; j++) {
+                       ok1(ntdb_fetch(ntdb, key, &d) == NTDB_SUCCESS);
+                       ok1(d.dsize == sizeof(j));
+                       ok1(d.dptr != NULL);
+                       ok1(d.dptr && memcmp(d.dptr, &j, d.dsize) == 0);
+                       free(d.dptr);
+               }
+
+               /* Traverse through them. */
+               ok1(ntdb_traverse(ntdb, trav, NULL) == OVERLOAD);
+
+               /* Delete the first 99. */
+               for (j = 0; j < OVERLOAD-1; j++)
+                       ok1(ntdb_delete(ntdb, key) == 0);
+
+               ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+
+               ok1(ntdb_fetch(ntdb, key, &d) == NTDB_SUCCESS);
+               ok1(d.dsize == sizeof(j));
+               ok1(d.dptr != NULL);
+               ok1(d.dptr && memcmp(d.dptr, &j, d.dsize) == 0);
+               free(d.dptr);
+
+               /* Traverse through them. */
+               ok1(ntdb_traverse(ntdb, trav, NULL) == 1);
+
+               /* Re-add */
+               for (j = 0; j < OVERLOAD-1; j++) {
+                       ok1(ntdb_store(ntdb, key, dbuf, NTDB_INSERT) == 0);
+               }
+               ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+
+               /* Now try deleting as we go. */
+               ok1(ntdb_traverse(ntdb, trav, trav) == OVERLOAD);
+               ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+               ok1(ntdb_traverse(ntdb, trav, NULL) == 0);
+               ntdb_close(ntdb);
+       }
+
+       ok1(tap_log_messages == 0);
+       return exit_status();
+}